KR19990045159A - Hydraulic displacement device - Google Patents

Abstract

At least one rotating piston protruding into a chamber of a housing filled with an electromagnetic fluid / magnetic fluid, the rotating piston having respective electrically adjustable condenser plate segments and / or electrical distributed over two end walls. Equipped with at least one rotating piston blade in an adjustable coil arrangement, on the one hand, to the impact of electromagnetic fields and the separation formed by the electromagnetic fluid / magnetic fluid present between the condenser plate segments and the coil arrays. And on the other hand, in a hydraulic displacement device having a rotor formed by a suction surface and a pressure surface by at least one rotating piston blade and supported in a housing, high pressure, high flow rate and high power are realized, Opposing at least one pair of condenser plate segments 9 and / or coil arrangement It is achieved by being formed to hang nesting.

Description

Hydraulic displacement device

At least one rotating piston protruding into a chamber of a housing filled with an electromagnetic fluid / magnetic fluid, the rotating piston having respective electrically adjustable condenser plate segments and / or electrical distributed over two end walls. Equipped with at least one rotating piston blade in an adjustable coil arrangement, on the one hand, to the impact of electromagnetic fields and the separation formed by the electromagnetic fluid / magnetic fluid present between the condenser plate segments and the coil arrays. And on the other hand, a hydraulic displacement device having a rotor, which is formed by a suction surface and a pressure surface by at least one rotating piston blade and supported in a housing.

Hydraulic pumps or hydraulic motors operating according to the principle of displacement are known from DE 40 03 298. This hydraulic displacement device has a rotor supported in the housing. The vanes connected to the rotor rotate in the chamber of the housing. On the end face of the chamber are arranged condenser plate segments, each of which is electrically adjustable. The chamber is filled with a viscous liquid by electrons. By forming a voltage in the condenser plate segment, a closure is made in the chamber to form the suction and pressure surfaces of the pump between the wing and the closure. In order to maintain the pump action and suction action properly, the electrical excitation of the condenser plate segment rotates in line with the rotational operation of the vanes.

Electron fluids and magnetic fluids are liquids in which the properties of the fluid can be controlled by an electromagnetic or magnetic field. Typically, in the case of electronic fluids or magnetic fluids, suspended particles, ie, solidified particles which are suspended in the carrier medium and which can be polarized by the electromagnetic or magnetic fields, are important. Through the former viscous liquid or magnetic fluid, it is possible to execute the actuator except the moving part or to significantly reduce the number of moving parts. In addition, the use of hydraulic valves, hydraulic cylinders, oscillators, viscous couplings, dashpots or motor supports is known (summary list "Application of Electromagnetic Flow Effect in Engineering Practice", Hydrodynamics Soviet Research, Inc. Vol. 8, No. 4, July-August 1979).

The energy converter of the electron fluid actuator has an array of electrodes, between which the electron fluid is contained, and a regulating voltage is formed on the array. The interaction between the electrode array and the electron flow depends essentially on a kind of liquid conversion in three modes, including shear mode (which causes the electrodes to move relative to each other in parallel planes) and ( There is a flow mode mode in which the electrodes are fixedly arranged and liquid flows between them and a squeez mode (which changes the electrode spacing the electrodes face each other). These modes appear in conjunction with each other.

It is an object of the present invention to improve the hydraulic displacement device mentioned at the outset so that the displacement device is realized with high pressure, high flow rate and high power in the case of the same size of structure.

1 is a cutaway view of the hydraulic displacement device along line I-I in FIG. 2 in an embodiment as a vane pump;

2 is a cross-sectional view taken along the line II-II of FIG.

<Description of the code | symbol about the principal part of drawing>

1: displacement device

2: cylindrical housing

3: rotor

4: rotating piston

5: rotary piston wing

6: annular chamber

7: pressure means space

8: end wall

9: condenser plate segment

10: wire

The object of the present invention is solved by forming at least one pair of condenser plate segments and / or coil arrangements facing each other in succession.

In the configuration of the present invention, the condenser plate segment and / or coil arrangement is first adjusted so that the electron flow liquid solidifies in the range of electron flow and the electron flow liquid is closed by the rotating piston blades in the flow mode. In this case of coagulation, the coagulated particulates are arranged like chains. The solidified site is in the same state as the elastic solid. The condenser plate segments are formed so as to be movable relative to each other in order to raise the pressure in the chamber of the pressure means. The volume of the pressure means chamber is reduced and the electron flow liquid also exits through the squeeze mode. The electrons act on a stable counter force through the movement of the condenser plate segment between the chained solid particles. At this time, in contrast to the flow mode, in the case of the stopper of the solidified electron flow liquid as the closing of the flow mode and the squeeze mode, a pressure 10 times or more may be formed before the stopper of the liquid is continuously moved by the pressure.

Another arrangement of the invention is that the rotary piston has six rotary piston vanes, and six pressure means spaces are formed between the rotary piston vanes and the circular housing chamber, which in all cases are connected to the suction and pressure tubes It is assumed that a pair of condenser plate segments are arranged in each pressure means space opposite each other. This allows the condenser plate segment to be adjusted on the one hand on the one hand and on the other hand the respective suction and pressure tubes in the space of the pressure means can be connected in series or in parallel. Various perfusion to pressures can be realized (depending on the pipe connection of the pressure means). Thus, for example, in the case of low pressure, maximum perfusion is reached (parallel connection), or in the case of lowest perfusion, it is high pressure (serial connection). Through connection and disconnection of the condenser plate segment, perfusion can be controlled by impulse perfusion adjustment.

A further advantageous construction of the invention is the subject of another dependent claim. Embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, the displacement device 1 shown in FIG. 1 at the time of pump operation will be described. In the cylinder housing 2, the rotor 3 is rotatably supported around the A axis. The rotor 3 is connected to a substantially one disc-shaped rotary piston 4 which acts as a rotary piston blade 5 and is provided with radial projections which are constantly distributed around. The rotary piston 4 preferably rotates when the rotor 3 driven by a motor, not shown, located in the annular chamber 6 formed in the cylindrical housing 2 rotates. As shown in Fig. 2, the displacement device 1 shown in the embodiment is provided with six rotating piston vanes 5. Thereby, six pressure means spaces 7 are formed between the cylindrical housing 2 and the rotary piston 4.

An end wall 8 of the annular chamber facing each other is provided with a band-shaped condenser plate segment 9 extending radially. In the illustrated embodiment each end wall 8 supports a condenser plate segment 9 which is insulated from one another and electrically insulated with respect to the housing and which is connected to the electrical control device via the wire 10. This is only shown schematically.

As the condenser plate segments 9 are arranged so as to be superimposed on one another, a reduction in the volume of the pressure means space 7 and thereby an increase in pressure can be achieved. The movement of the condenser plate segment 9 is guided by the actuator 20, which is schematically shown. Movement is indicated in the B direction. Actuator 20 may be implemented, for example, with piezoelectric, magnetic, hydraulic or strict electromagnet control. Preferably, the oscillation motion is transmitted via the actuator. Adjustments are not shown in detail in the drawings.

The suction tube 11 is guided from the liquid reservoir via the housing 2 to the annular groove 12 from which the outlet channel 13 of the rotor 13 is located at the back of each rotating piston blade. You are guided to. In all cases, the channel 15 is guided to the annular groove 16 via the rotor from the front side (as seen in the direction of rotation) of each rotary piston vane, and the liquid outflow from the annular groove passes through the housing 2. You are guided to the user. In the embodiment shown in Figs. 1 and 2, the pipes of the pressure means are connected in series, which can be realized in the case of perfusion with a low maximum pressure.

The space 7 of the pressure means contains an electron flow liquid. When the condenser plate segments 9 which are opposed to each other and have a voltage by the adjusting device have an electric fluid between the opposing band-shaped condenser plate segments 9, the space 7 of the pressure means is hardened. It is sealed in the range. In the case where the rotary piston 4 and the rotary piston vanes 5 formed therein rotate in the direction of the indication 17, each of the pressure means spaces 7 is two when the condenser plate segment 9 is electrically controlled. The volume is changed between the rotary piston blades 5, which are located side by side, and are divided into two working chambers, each sealed. Thus, the moving rotary piston blade 5 introduces liquid from the suction pipe 11 at its rear side, and the liquid pressurized to the user through the channel 15, the annular groove 16 and the liquid discharge is concentrated at the front side. .

At the same time, the actuator induces an oscillation motion with respect to the condenser plate segment 9, through which the electron flow liquid additionally enters the squeeze mode.

According to the required pressure, the paired condenser plate segments 9 are connected or disconnected.

The rotary piston vanes 5 have support members 19 which hydrostatically support therein the end walls 8 of the face 18 turned to the annular chamber 6, the support pockets being respectively in fluid. It is connected to the pressure side via the throttle. The hydrostatic support member 19 allows the hydraulic centering of the rotating piston blade to work well between both side walls of the annular chamber 6.

Instead of using an electronic fluid, a magnetic fluid or a mixture of both liquids may be used.

When using magnetic fluid, an electrically adjustable coil arrangement is provided instead of the condenser plate segment 9.

The present invention has the effect that the displacement device can be realized at high pressure, high flow rate, and high power in the case of the size of the same structure.

Claims (2)

At least one rotating piston protruding into a chamber of a housing filled with an electromagnetic fluid / magnetic fluid, the rotating piston having respective electrically adjustable condenser plate segments and / or electrical distributed over two end walls. Equipped with at least one rotating piston blade in an adjustable coil arrangement, on the one hand, to the impact of electromagnetic fields and the separation formed by the electromagnetic fluid / magnetic fluid present between the condenser plate segments and the coil arrays. In and on the other hand a hydraulic displacement device having a rotor, which is formed by a suction surface and a pressure surface by at least one rotating piston blade and supported in a housing, A hydraulic displacement device, characterized in that at least one pair of condenser plate segments (9) and / or coil arrangements facing each other are formed in succession to one another. The rotating piston (4) is provided with six rotating piston vanes (5) and has six pressure means spaces between the rotating piston vanes (5) in the housing (2) and the annular chamber (6). (7) is formed, which is connected to the suction pipe and the pressure pipe (11, 12, 13, 14, 15, 16), respectively.